Caverns Deep is a full-length adventure is through 15 interlinked encounters traversing sprawling caverns and outdoor areas, specifically designed for the terrain encounter sets from the Dwarven Forge Caverns Deep! series. Caverns Deep is set in the Mythras Campaign Setting and is located under Dreadhollow Forest far to the east of Valoria. Caverns Deep is an adventure for characters level 5-10. Part one of the Cavern Deep adventure module includes encounters 1-6.